This is the mail archive of the
libc-alpha@sourceware.org
mailing list for the glibc project.
[AArch64] Add bits/hwcap.h for aarch64 linux
- From: Szabolcs Nagy <szabolcs dot nagy at arm dot com>
- To: GNU C Library <libc-alpha at sourceware dot org>
- Cc: <nd at arm dot com>, Marcus Shawcroft <Marcus dot Shawcroft at arm dot com>
- Date: Wed, 22 Jun 2016 16:36:42 +0100
- Subject: [AArch64] Add bits/hwcap.h for aarch64 linux
- Authentication-results: sourceware.org; auth=none
- Nodisclaimer: True
- Spamdiagnosticmetadata: NSPM
- Spamdiagnosticoutput: 1:99
As noted in
https://sourceware.org/ml/libc-alpha/2014-02/msg00562.html
AArch64 uses HWCAP bits but they are not defined in sys/auxv.h.
This patch adds a copy of the linux v4.6 arm64 uapi asm/hwcap.h
definitions.
2016-06-22 Szabolcs Nagy <szabolcs.nagy@arm.com>
* sysdeps/unix/sysv/linux/aarch64/bits/hwcap.h: New.
diff --git a/sysdeps/unix/sysv/linux/aarch64/bits/hwcap.h b/sysdeps/unix/sysv/linux/aarch64/bits/hwcap.h
new file mode 100644
index 0000000..9759130
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/aarch64/bits/hwcap.h
@@ -0,0 +1,34 @@
+/* Defines for bits in AT_HWCAP. AArch64 Linux version.
+ Copyright (C) 2016 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#if !defined (_SYS_AUXV_H)
+# error "Never include <bits/hwcap.h> directly; use <sys/auxv.h> instead."
+#endif
+
+/* The following must match the kernel's <asm/hwcap.h>. */
+#define HWCAP_FP (1 << 0)
+#define HWCAP_ASIMD (1 << 1)
+#define HWCAP_EVTSTRM (1 << 2)
+#define HWCAP_AES (1 << 3)
+#define HWCAP_PMULL (1 << 4)
+#define HWCAP_SHA1 (1 << 5)
+#define HWCAP_SHA2 (1 << 6)
+#define HWCAP_CRC32 (1 << 7)
+#define HWCAP_ATOMICS (1 << 8)
+#define HWCAP_FPHP (1 << 9)
+#define HWCAP_ASIMDHP (1 << 10)